DOCS-461 review edits III

Author: Bob Grabar

source/reference/command/moveChunk.txt

@@ -31,8 +31,8 @@ moveChunk
 
    :param _secondaryThrottle: Optional. Set to ``false`` by default. If
                               set to ``true``, the balancer waits for
-                              replication to :ref:`secondaries
-                              <secondary>` while copying and deleting
+                              replication to :term:`secondaries <secondary>`
+                              while copying and deleting
                               data during migrations. For details, see
                               :ref:`sharded-cluster-config-secondary-throttle`.